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2003
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Avalanche 2500 4WD V8-8.1L VIN G
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Superceded Bulletins
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Drivetrain - 4WD lamp Flashing/DTC's Set/4WD Inoperative
Drivetrain - 4WD lamp Flashing/DTC's Set/4WD Inoperative
This TSB number 03-04-21-001B, dated 05/01/03 has been superceded by TSB number 03-04-21-001D , dated 12/04/03